Question 3922 Deck General

The correct answer is B) a lead plug. The locking pin that joins the parts of a detachable link is held in position by a lead plug. This is a common method used to secure the locking pin and prevent it from working itself loose over time. The lead plug is soft and malleable, allowing it to fill any gaps or spaces around the pin and hold it tightly in place. The other answer choices are incorrect because: A) a cotter pin is used to secure a different type of connection, not a detachable link; C) the self-locking characteristics of a taper would not be sufficient to reliably hold the pin in position; and D) a tack weld would be an improper and potentially unsafe method of securing a detachable link.